You will need some waterproof items,a jacket,gloves and waterproof pants. You will need sunglasses,wool socks,a scarf, a beanie and plenty of layers. You can always rent anything else you need.
you can use normal poles like for skiing and you will need a Men's Discovery Ski Set with Rossignol X5 Boots. I only recommended this type as the best brand.
The necessary equipment for Cross Country skiing are Cross Country Skis. Cross Country Skis are specific and require special bindings and boots to need to be fitted correctly. Ski Poles are a must as they help with both balance and speed. Safety is key and most places ask that the operator use a helmet at all times as well.
All you need is your normal ski equipment. There is no need to buy cross country skis. But it is important that 2 skiing sticks are included in your equipment.